CODEWITHSUNDEEP
c++eclipsegcc
Dzyann
Dzyann

Reputation: 5208

Eclipse, best way to build shared library?

I am rather new with C++ and using eclipse.

I have a Native C++ Static Library with a C++/CLI Wrapper in Visual Studio 2012.

Now I am building the Native C++ code in Linux with Eclipse (Juno Service Release 2) and GCC 4.2.4.

I created a Shared Library Empty Project in Eclipse and added all my .h and .cpp files, and let Eclipse do the building. However I got the error

relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC

I added the -fPIC flag in Project->Settings->GCC C++ Compiler-> Miscellaneous-> Other Flags.

I don't know anyone proficient using Linux/Eclipse so I am not sure I took the best path.

Is there a best/"more correct" way to build a shared library than the way I just described? Are there any issues to the approach I took?

Upvotes: 2

Views: 3700

Answers (1)

mockinterface
mockinterface

Reputation: 14860

Adding -fPIC is the right thing to do, you should be fine.

Shared libraries need to be relocated when loaded (by ldd) and there are two main approaches: load-time relocation and Position Independent Code (PIC), with the latter being mainstream in modern solutions and architectures.

Upvotes: 1

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